<template>
  <div>
    <div class="search">
      <input  v-model="keyword" type="text"
      class="search-input" placeholder="输入城市名或拼音">
    </div>
      <div class="search-content" ref="search" v-show="keyword">
        <ul>
           <li class="search-item border-bottom" v-for="item of list" :key="item.id"  @click="handleCityClick(item.name) ">{{item.name}}</li>
           <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配的数据</li>
        </ul>
      </div>
  </div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapState, mapMutations} from 'vuex'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.spell.indexOf(this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
	methods: {
			handleCityClick (city) {
			this.$store.commit('changeCity',city)
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations(['changeCity'])
	},
  mounted () {
    this.scroll = new Bscroll(this.$refs.search,{
			click: true
		})
  }
}
</script>
<style lang="stylus" scoped>
  @import "~styles/varibles.styl"
  .search
    height .72rem;
    background $bgColor;
    padding 0 .1rem;
    .search-input
      box-sizing border-box;
      padding 0 .1rem;
      width 100%;
      line-height .62rem;
      height .62rem;
      text-align center;
      border-radius .1rem;
      color #666;
      outline none;
      border none;
      /*touch-action: none*/
  .search-content
    z-index 1;
    overflow: hidden
    position absolute;
    top 1.58rem;
    left 0;
    right 0
    bottom 0;
    background: #eee;
    .search-item
      line-height .62rem;
      padding-left .2rem;
      background #fff
      color: #666
</style>
